<template>
  <svg
    aria-hidden="true"
    class="svg-icon"
    :style="'width:' + size + ';height:' + size"
    v-on="$listeners"
  >
    <use :xlink:href="symbolId" :fill="color" />
  </svg>
</template>
<script>
export default {
  name: 'SvgIcon',
  props: {
    prefix: {
      type: String,
      default: 'icon'
    },
    iconClass: {
      type: String,
      required: false,
      default: ''
    },
    color: {
      type: String,
      default: ''
    },
    size: {
      type: String,
      default: '1em'
    }
  },
  data() {
    return {}
  },
  computed: {
    symbolId() {
      return `#${this.prefix}-${this.iconClass}`
    }
  },
  watch: {},
  created() {},
  mounted() {},
  methods: {}
}
</script>

<style scoped>
.svg-icon {
  display: inline-block;
  width: 1em;
  height: 1em;
  overflow: hidden;
  vertical-align: -0.15em; /* 因icon大小被设置为和字体大小一致，而span等标签的下边缘会和字体的基线对齐，故需设置一个往下的偏移比例，来纠正视觉上的未对齐效果 */
  outline: none;
  fill: currentcolor; /* 定义元素的颜色，currentColor是一个变量，这个变量的值就表示当前元素的color值，如果当前元素未设置color值，则从父元素继承 */
}
</style>
